Test/review of Vapcell INR10440 320mAh (Green)

Batteries and Chargers Rechargeable Batteries
1

Vapcell INR10440 320mAh (Green)







Official specifications:

  • Model:INR10440 320mah 3A

  • Size: 10.1*43.0mm

  • Nominal voltage: 3.60V

  • End-of-charge voltage: 4.20V

  • End-of-discharge Voltage: 2.5V

  • Typical Capacity: 320mAh (0.2C discharge)

  • Min capacity: 290mAh (0.2C discharge)

  • Weight: Max:10g

  • Internal resistance: Max:60mOhm AC 1kHz

  • Standard Charge: 250mA,CCCV 50mA cut-off

  • Quick Charge Current:500mA

  • Max Continuous Discharge Current: 3A



This LiIon size is similar to AAA cells, but with up to 4.2V











The discharge curves for the two cells are fairly similar and the cells can handle up to 3A, this means more than 9 watt of power from this small cell!










The 9 watt is only for 5 minutes!











Here I am pulsing 0.5A on and off to measure internal resistance during discharge.



Conclusion

There are not many 10440 LiIon cells on the market, this is a good and rather high power one.



Notes and links


The batteries was supplied by Vapcell for review.

How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries
Graphical comparison to other LiIon batteries
Table with all tested LiIon batteries
2

Thanks for testing. And confirming yet another good cell from vapcell.

3

Thanks HKJ!

4

Looks good, thanks :+1:

5

Thanks. Good stuff coming from Vapcell lately.

6

Have you re-tested the Efest 10440 lately? I do some testing on the side for inventory verification and think they've taken a sharp downturn in recent batches.

7

No.

8

Sometime last year I got one (the “350mAh/3A” one) from another vendor and it was bad. It measured like half the label capacity with high resistance. Ended up getting a replacement that was much closer to spec. I think it arrived with very low voltage though so not sure if it was due to storage or just a poor specimen all along.

9

Thanks for the test, I was waiting on this one! :slight_smile:

Comparing this test to the old Efest 10440 tests gives a mixed impression. At the lower currents the Efest actually gives a higher voltage at the same capacity, at 2A they are close, and at 3A the Vapcell keeps its capacity while the Efest does not.

10

All newer Efest 10440 cells I have received have had much poorer performance than when they first appeared.

11

Well, is there any source for these???
I’d like to retire a few Efests.

12

https://www.aliexpress.com/item/Free-shipping-Vapcell-INR10440-320mah-3A-max-continuous-discharge-battery-with-button-top-cells-for-flashlight/33016792005.html?spm=a2g0o.cart.0.0.45333c00WxQ41f

13

The flat top version of this Vapcell battery appears good, but the button top version performed, however, poorly. I purchased 16 pieces last month for my ACEBEAM UC15 and tested them:

Apparently this is a completely different cell from the flat top one. They simply performed similarly to those poor button-top 10440’s seen in the market. I reported this issue to Vapcell, hoping they could find a truly identical button-top 10440.

14

Ordered 6 from here yesterday. Today I received a refund to Paypal.

15
16

Did you mean 9 watt?

Thanks.

Cheers :-)

17

Yes, it is fixed now

18

Ordered some here, thanks for the link.

19

Thanks for the test :+1:

20

I had that problem with the gold Vapcell 14500, 1000mAH cells. The welds holding the button tops were so bad, I popped the buttons right off with my thumbnail. After I removed the buttons and rewrapped the cells, they tested great.